supply of voltmeter nw 72, 0-1000 v acvoltmeter nw 72, 0-1000 v ac,voltmeter nw 72, 0-1000 v ac, with accuracy class-1 conforming to is:1248/83 pt. ii si milar to sr-72 type of m/s. yokins or similar models of m/s. ae / muller + zeigler/rishabh /l&t makes a s per bom of rdso specification no. rdso/pe/spec/ac/0184- 2015 [rev.1]. the meter shall be suppli ed along with calibration certificate from the manufacturer traceable to nabl standards. offers from oem/authorized dealers will only be accepted [ warranty period: 30 months after the date of deliver y ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]